1 /* Copyright (C) 2015-2022 Free Software Foundation, Inc. 2 Contributed by Mentor Embedded. 3 4 This file is part of the GNU Offloading and Multi Processing Library 5 (libgomp). 6 7 Libgomp is free software; you can redistribute it and/or modify it 8 under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3, or (at your option) 10 any later version. 11 12 Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY 13 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 14 FOR A PARTICULAR PURPOSE. See the GNU General Public License for 15 more details. 16 17 Under Section 7 of GPL version 3, you are granted additional 18 permissions described in the GCC Runtime Library Exception, version 19 3.1, as published by the Free Software Foundation. 20 21 You should have received a copy of the GNU General Public License and 22 a copy of the GCC Runtime Library Exception along with this program; 23 see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 24 <http://www.gnu.org/licenses/>. */ 25 26 /* This file defines OpenMP API entry points that accelerator targets are 27 expected to replace. */ 28 29 #include "libgomp.h" 30 31 void omp_set_default_device(int device_num)32omp_set_default_device (int device_num __attribute__((unused))) 33 { 34 } 35 36 int omp_get_default_device(void)37omp_get_default_device (void) 38 { 39 return 0; 40 } 41 42 int omp_get_initial_device(void)43omp_get_initial_device (void) 44 { 45 return GOMP_DEVICE_HOST_FALLBACK; 46 } 47 48 int omp_get_num_devices(void)49omp_get_num_devices (void) 50 { 51 return 0; 52 } 53 54 int omp_is_initial_device(void)55omp_is_initial_device (void) 56 { 57 /* AMD GCN is an accelerator-only target. */ 58 return 0; 59 } 60 61 /* This is set to the device number of current GPU during device initialization, 62 when the offload image containing this libgomp portion is loaded. */ 63 volatile int GOMP_DEVICE_NUM_VAR; 64 65 int omp_get_device_num(void)66omp_get_device_num (void) 67 { 68 return GOMP_DEVICE_NUM_VAR; 69 } 70 71 ialias (omp_set_default_device) 72 ialias (omp_get_default_device) 73 ialias (omp_get_initial_device) 74 ialias (omp_get_num_devices) 75 ialias (omp_is_initial_device) 76 ialias (omp_get_device_num) 77